In Shakespeare's Macbeth, Macbeth certainly brings about his own downfall with his hubris (his forcing his way above his station in life) and his ambition. But other factors do contribute to his fall.
Macbeth is not the planner in his family--his wife is. He veers from her plan when he kills the grooms, who should be interrogated about what they know of Duncan's death. By veering from his wife's plan he arouses suspicion in Macduff, the hero of the play who will eventually defeat and kill Macbeth. He then shuts his wife out of the decision-making process, and makes his own plans. And his plans are faulty. He replaces his wife as adviser with the witches, who don't have his best interests in mind and use equivocation to trick him. He creates too many coincidences when he kills Banquo and tries to kill Fleance, but Fleance escapes (too many sons killing fathers to be believable). And he really goes over the top, so to speak, when he orders the slaughter of Macduff's family. His fellow thanes and soldiers can only take so much. By the time the battle actually starts, most of Macbeth's subjects have gone over to the opponents.
Also, depending on your point of view and your interpretation, you could argue that fate plays a part in Macbeth's fall. The witches, representing fate in the play, know the future or at least know how to manipulate the present to form the future, and somewhat direct the action. At the least, the witches start the play with a plan and that plan is successful. The witches win, in the play, with no costs to themselves.